package com.todo.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.todo.entity.UID;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
@Mapper
public interface UIDMapper extends BaseMapper<UID> {

    @Select("select * from u_uid_pool order by rand() limit 1")
    public UID getUID();
}
